All Questions
Tagged with newtonian-gravity projectile
200
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What are the conditions that produce various shapes in 2D motion?
I have read that projectile motion is parabolic in nature. I know that the equation of projectile motion represents a parabola. But when do we get a parabolic curve? Does it happen when there is ...
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113
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How does gravity do work to a horizontal projectile?
Suppose a ball is moving in a horizontal projection with some velocity $u_0$ in the positive $x$ direction. Here we see that although gravity is perpendicular to the velocity vector, it changes the ...
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How to calculate the trajectory of a high speed projectile on earth?
Let’s say you launch a high velocity ($2-8km/s$) projectile from the earth at the equator. How do you calculate the trajectory of the projectile in the absence of drag? Is there a simple formula that ...
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Maximum height of bullet shot straight up [closed]
"Consider a hypothetical dense astronomical object with a mass of $2 × 10^{30}$ kg (about the mass of the sun), and a radius of $1.4 × 10^{14}$ m. Assuming you could stand on the surface of this ...
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Husband and Wife with Metal and Fabric Parachutes [closed]
Let's suppose: an open parachute made of fabric with a lady hanging below, starting from stand still, falls from 5000 meters. Another parachute made of thick metal, with the same size and shape as the ...
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How to calculate the gravitational field from trajectories?
I have a question about numerical simulation. At first I was pretty sure that It should exist some well-established state of the art techniques to solve it, but It seems I don't have the exact ...
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Does a slow moving object fall faster than a fast falling object?
If I have understood it correctly, air resistance is proportioal to the squared speed of an object, meaning that the faster the object is going the more affected by air resistance it is ( which must ...
- 41
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Bullet thought experiment continuation
So I'm sure a lot of you have heard the thought experiment where you shoot a bullet parallel to the ground, and drop a bullet at the same time and they hit the ground at the same time. Imagine now you ...
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Generalized projectile motion [closed]
Toss an object from the surface of earth at speed $V_1=\sqrt{MG/R}$. Here $R$ is the radius of the earth and $M$ is the mass of the earth and $G$ is universal gravitational constant. How long will it ...
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Why do elastic balls bounce?
Can someone please explain the process of a ball bouncing in terms of Forces?
First, it doesn't make sense to say that the normal force is greater than that of the upwards force. When the ball hits ...
- 183
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276
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How do i calculate a projectile range accounting for a planet's curvature?
I was trying to solve this problem myself but i dont know how to work out certain variables like gravity, centripetal force and the changing impact point due to the curve of a planet (any planet).
So ...
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Would a projectile launched with the escape velocity reach a final velocity of 0 as time approached infinity?
I just wanted to check my understanding of escape velocity.
If a projectile was to launch and have the exact velocity as the escape velocity of the earth,
it would have a final velocity of 0 correct?
...
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115
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Finding the angle that gives longest path for projectile motion using the average speed over the vertical displacement of object
For projectile motion, let's say a ball is launched at an angle a with respect to the horizontal, upwards.
If I want to find an expression for the length of the path travelled by the ball before it ...
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4
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177
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What happens if a projectile is projected with escape velocity but not upwards?
This may be a dumb question, however I was confused with escape velocity and in the end determined that escape velocity is based off of energy, whereby (i think assuming air resistance and all that is ...
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What shape the Earth would have to be for an object in free fall to follow a straight line trajectory?
I was explaining to my 8 year old daughter that objects in free fall follow an elliptical trajectory instead of the commonly believed parabolic one (source: https://www.forbes.com/sites/...
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